public void Add5and5return10()
{
//arrange
double x = 5;
double y = 5;
double result = 10;
//act
CalculatorManager cm = new CalculatorManager();
double actual = cm.Add(x, y);
//assert
Assert.AreEqual(result, actual);
}
public void AddTest()
{
CalculatorManager cm = new CalculatorManager();
// null check
try
{
cm.Add(null);
Assert.Fail("FAIL: NULL value not handled properly.");
}
catch (ArgumentException)
{
// Pass... should throw an ArgumentException
}
catch
{
Assert.Fail("FAIL: NULL value not handled properly.");
}
// Requirement 1: Support two numbers
Assert.AreEqual(cm.Add(""), 0); // test for empty string
Assert.AreEqual(cm.Add("20"), 20);
Assert.AreEqual(cm.Add("1,500"), 501); // test two numbers
Assert.AreEqual(cm.Add("5,tytyt"), 5);
Assert.AreEqual(cm.Add("5.2,5"), 5); // test that decimals don't break anything
// Assert.AreEqual(cm.Add("5,2,3"), 7); // three or more values not allowed (REMOVED for Requirement 2)
// Requirement 2: Support unlimited numbers
Assert.AreEqual(cm.Add("1,2,3,4,5,6,7,8,9,10,11,12"), 78);
// Requirement 3: Support a newline character as an alternative delimiter
Assert.AreEqual(cm.Add("1\n2,3"), 6);
Assert.AreEqual(cm.Add("1\n2,3\n5"), 11);
CalculatorManager cmNeg = new CalculatorManager(false); // For Requirement 3b
// Requirement 4: Deny negative numbers
try
{
// Requirement 3b: Toggle whether to deny negative numbers
Assert.AreEqual(cmNeg.Add("-5,-2,-3"), -10);
cm.Add("-5,-2,-3");
Assert.Fail("FAIL: Negative values not handled properly.");
}
catch (ArgumentException)
{
// Pass... should throw an ArgumentException
}
catch
{
Assert.Fail("FAIL: Negative values not handled properly.");
}
// Requirement 5: Ignore any number greater than 1000
Assert.AreEqual(cm.Add("2,1001,6"), 8);
// Requirement 6: Support 1 custom single character length delimiter
Assert.AreEqual(cm.Add("//;\n2;5"), 7);
// Requirement 7: Support 1 custom delimiter of any length
Assert.AreEqual(cm.Add("//[***]\n11***22***33"), 66);
// Requirement 8: Support 1 custom delimiter of any length
Assert.AreEqual(cm.Add("//[*][!!][r9r]\n11r9r22*33!!44"), 110);
// TODO: Add more test cases for each requirement
}